Grasshopper Solar Corporation v. Independent Electricity System Operator

JurisdictionOntario
CourtCourt of Appeal (Ontario)
JudgeFeldman, Lauwers and Huscroft JJ.A.
Citation2020 ONCA 499
Docket NumberC67794 and C67795
Date07 August 2020

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20 practice notes
  • COURT OF APPEAL SUMMARIES (FEBRUARY 2 – FEBRUARY 6)
    • Canada
    • LexBlog Canada
    • February 8, 2026
    ...c. 8., Sattva Capital Corp. v. Creston Moly Corp., 2014 SCC 53, Grasshopper Solar Corporation v. Independent Electricity System Operator, 2020 ONCA 499, Trial Lawyers Association of British Columbia v. Royal & Sun Alliance Insurance Company of Canada, 2021 SCC 47, Chitty on Contracts, 36 ed......
  • Court Of Appeal Summaries (January 13 ' 17, 2025)
    • Canada
    • Mondaq Canada
    • January 24, 2025
    ...Consulting Ltd. v. Recipe Unlimited Corporation, 2021 ONCA 907, Grasshopper Solar Corporation v. Independent Electricity System Operator, 2020 ONCA 499, Bank of America Canada v. Mutual Trust Co., 2002 SCC 43, Owners, Strata Plan LMS 3905 v. Crystal Square Parking Corp., 2020 SCC 29, Third ......
  • Court Of Appeal Summaries (March 29 ' April 2, 2021)
    • Canada
    • Mondaq Canada
    • April 6, 2021
    ...Jean v. Cheung, 2009 ONCA 9, Climans v. Latner, 2020 ONCA 554, Grasshopper Solar Corporation v. Independent Electricity System Operator, 2020 ONCA 499, leave to appeal refused, [2020] S.C.C.A. No. 360, Martin v. American International Assurance Life Co., 2003 SCC 16, Ledcor Construction Ltd......
  • Court Of Appeal Summaries (February 2 ' 6, 2026)
    • Canada
    • Mondaq Canada
    • February 13, 2026
    ...c. 8., Sattva Capital Corp. v. Creston Moly Corp., 2014 SCC 53, Grasshopper Solar Corporation v. Independent Electricity System Operator, 2020 ONCA 499, Trial Lawyers Association of British Columbia v. Royal & Sun Alliance Insurance Company of Canada, 2021 SCC 47, Chitty on Contracts, 36 ed......
  • Get Started for Free
17 cases
  • ID Inc. v. Toronto Wholesale Produce Association
    • Canada
    • Superior Court of Justice of Ontario (Canada)
    • August 25, 2023
    ...believe that it would not rely on the contractual provision. In Grasshopper Solar Corporation v. Independent Electricity System Operator, 2020 ONCA 499, 8 B.L.R. (6th) 169, at para. 55, the court set out the test for estoppel by Estoppel by convention is a relatively rare form of estoppel t......
  • Fram Elgin Mills 90 Inc. v. Romandale Farms Limited
    • Canada
    • Court of Appeal (Ontario)
    • April 1, 2021
    ...assumption: see Ryan v. Moore, at paras. 54, 62. [333] In Grasshopper Solar Corporation v. Independent Electricity System Operator, 2020 ONCA 499, leave to appeal refused, [2020] S.C.C.A. No. 360 and No. 361, Huscroft J.A. made explicit another element of the test that I believe was implici......
  • James Bay Resources Limited v. Mak Mera Nigeria Limited
    • Canada
    • Superior Court of Justice of Ontario (Canada)
    • December 4, 2023
    ...which was prescribed by the Agreements. [132] As set out in Grasshopper Solar Corporation v. Independent Electricity System Operator, 2020 ONCA 499, 8 B.L.R. (6th) 169, estoppel by convention cannot change the terms of a contract. Rather, it prevents a party from relying on the contract “to......
  • Kuipers v. NEP Limited GP Inc
    • Canada
    • Court of King's Bench of Alberta (Canada)
    • May 6, 2025
    ...and the alleged waiver of a right has not been put into writing: Grasshopper Solar Corporation v Independent Electricity System Operator, 2020 ONCA 499 at paras 76 and 78, leave to appeal to SCC refused, 2021 CanLII 10741. [311]     The EPC contract includes this wording......
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9 firm's commentaries
  • Court Of Appeal Summaries (January 13 ' 17, 2025)
    • Canada
    • Mondaq Canada
    • January 24, 2025
    ...Consulting Ltd. v. Recipe Unlimited Corporation, 2021 ONCA 907, Grasshopper Solar Corporation v. Independent Electricity System Operator, 2020 ONCA 499, Bank of America Canada v. Mutual Trust Co., 2002 SCC 43, Owners, Strata Plan LMS 3905 v. Crystal Square Parking Corp., 2020 SCC 29, Third ......
  • COURT OF APPEAL SUMMARIES (FEBRUARY 2 – FEBRUARY 6)
    • Canada
    • LexBlog Canada
    • February 8, 2026
    ...c. 8., Sattva Capital Corp. v. Creston Moly Corp., 2014 SCC 53, Grasshopper Solar Corporation v. Independent Electricity System Operator, 2020 ONCA 499, Trial Lawyers Association of British Columbia v. Royal & Sun Alliance Insurance Company of Canada, 2021 SCC 47, Chitty on Contracts, 36 ed......
  • Court Of Appeal Summaries (February 2 ' 6, 2026)
    • Canada
    • Mondaq Canada
    • February 13, 2026
    ...c. 8., Sattva Capital Corp. v. Creston Moly Corp., 2014 SCC 53, Grasshopper Solar Corporation v. Independent Electricity System Operator, 2020 ONCA 499, Trial Lawyers Association of British Columbia v. Royal & Sun Alliance Insurance Company of Canada, 2021 SCC 47, Chitty on Contracts, 36 ed......
  • Court Of Appeal Summaries (March 29 ' April 2, 2021)
    • Canada
    • Mondaq Canada
    • April 6, 2021
    ...Jean v. Cheung, 2009 ONCA 9, Climans v. Latner, 2020 ONCA 554, Grasshopper Solar Corporation v. Independent Electricity System Operator, 2020 ONCA 499, leave to appeal refused, [2020] S.C.C.A. No. 360, Martin v. American International Assurance Life Co., 2003 SCC 16, Ledcor Construction Ltd......
  • Get Started for Free